The France international attacking midfielder scored nine goals and created 116 chances in 30 league matches for the Hammers.
The former Marseille star has continued that form for France at the ongoing Euro 2016 finals, scoring two goals and creating 14 chances in two games.
Payet has been in great form for the past two seasons, and he has seemingly overcome his lack of consistency earlier in his career.
Given that the Frenchman is 29 years of age, he may not be one to be on top form for the next five years, but he would be a good signing for Manchester United.
United endured a disappointing season in 2014-15 and failed to finish in the top four of the Premier League.
With Jose Mourinho in charge of the first team, the Red Devils will be keen on challenging for the title next season.
The main priority of United would be to end up in the top four, and Payet would be a good ‘short-term’ signing.
Payet has proven himself in the Premier League, and he would be a good creative asset for United next season.
The Red Devils are one of the richest clubs in the world, and they should not shy away from making a bid for the Frenchman.
The former Lille attacker has also shown that he is happy to get stuck in and help defensively.
During the 2015-16 season, Payet attempted 57 tackles for West Ham, of which he won 16. The Frenchman may have won just two headers, but he attempted 12.
Mourinho likes his attacking players to help out defensively, and Payet is someone who would be willing to do that.
Signing Payet would also mean that West Ham would become weaker, therefore they would provide United with less competition for a top-four spot.
Juan Mata is the main creative attacking midfielder at United at the moment, but the Spain international was not fancied by Mourinho at Chelsea.
It remains to be seen if the former Valencia star is able to work with the Portuguese at United. If not, then Payet would be the perfect replacement.